ashtech GG Surveyor, Reference Manual

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196 GG Surveyor GPS+GLONASS Reference Manual
Example: Response message with CPD mode information.
$PASHR,CPD,MOD,ROV,FST,B,0.50,,,RTC,,,XIT,,CPD,99.0
POS: Set Base Position
$PASHS,CPD,POS,m1,c1,m2,c2,f1
This command sets the base point position from the rover receiver
where Table 6.106 defines the parameters.
Only implemented in Rovers, to allow the user to Enter the base station position at the
rover. This position is only used if the command $PASHS,CPD,UBP,0 is sent.
If UBP is entered without a CPD,POS information having been entered ahead of time,
the RTK engine will not send out a position. A base position MUST be entered before
UBP can be used.
d2 Reserved n/a
s3 Correction type ‘RTC’
s4 Reserved n/a
f2 Reserved n/a
s5 Which base position to use (entered/received) ‘ETD’,’XIT’
d3 Reserved n/a
s6 Which solution to output ‘CPD’
f3 Ambiguity fixing confidence level 0 (always float), 95.0, 99.0, 99.9
Table 6.106: CPD,POS Parameter Table
Parameter Description Range
m1 Latitude of base position in degrees and decimal minutes
(ddmm.mmmmmmm). 0-8959.9999999
c1 Direction of latitude N = North, S = South ‘S’, ‘N’
m2 Longitude of base position in degrees and decimal minutes
(ddmm.mmmmmmm) 0-17959.9999999
c2 Direction of longitude E = East, W = West ‘E’, ‘W’
f1 Reference point altitude (always have + or - sign) (in meters) ±9999.9999
Table 6.105: CPD,MOD Message Structure (continued)
Field Description Range